A pony has arrived in Ponyville looking for her 'auntie Purity'.

Some Twiumbra ( Twilight Sparkle/King Sombra) one word prompts. I'm not stopping till' I have made 100 parts. Enjoy! WARNING! FILLED WITH UN-PLATONIC LOVE BETWEEN TECHNICOLOR PONIES. IF THAT'S NOT YOUR THING TURN TAILS AND RUN.

Twilight turns evil. Turns Luna evil. They recruit Chrysalis. Equis is officially fucked.

It's the nine hundredth and eighty fifth Nightmare Night. Or in a week, at least. But a young, aspiring Twilight Sparkle desires to make it the night of the millennia. Darkness rises, plans unfold, and in the end, no one's on top.

At her brother shining armor wedding Twilight is turned into a changeling by Chrysalis.

Nightmare Moon won a thousand years ago, plunging Equestria into perpetual night. Now, as Princess Luna's student, Twilight Sparkle must contend with Celestia's unexpected return as a familiar group of ponies are thrown into conflict.

Twilight's immortality is driving her mad.

Deep in the hive lives a well bonded family of 6 changelings, though two are not normal.

Twilight is doing too much black magic that made her summon the king sombra!

After Nightmare Moon is released from her bonds to Luna, and Twilight is the new ruler. A war breaks out, and peace is shattered, and the fate of Equestria and her new ruler will be tested. This is the Trial of The Crown.

A sexy grimdark story of Twilight quest to confront, Celestia, the mare she loved most in the world about her sins and lies of a thousands years ago concerning Twilight's life, her birthright and her real father, King Sombra.

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Pinkie pie find a crystal ball, and Twilight sees herself in the future, as an alicorn princess. determined to become one, twilight does dark magic.

Twilight just got to the human world(again) and hears the whole situation about the Dazzlings. Adagio sees that she can be a threat and decides to take care of her. But not by getting rid of her, instead she wants Twilight to join them.

What will Twilight's friends do to save her? Will she go back to normal or will she remain a siren forever?